Excavator bucket tooth

Abstract

The excavator bucket tooth comprises an excavator bucket, the excavator bucket can penetrate through pin holes through a plurality of U-shaped plug pins to be detachably connected with a plurality of bucket teeth, the U-shaped plug pins are sleeved with rotating blocks in a sliding mode, the rotating blocks cover the pin holes in the side wall of the excavator bucket, the excavator bucket is hinged to the rotating blocks through a reset mechanism, and the U-shaped plug pins are sleeved with positioning holes in a sliding mode. A compression spring is fixedly connected between the excavator bucket and the dovetail block, the compression spring is arranged in the dovetail groove, the rotating block is rotationally arranged in the arc-shaped groove, the section of the sliding groove is in a horn shape, and two arc-shaped sliding grooves are symmetrically formed in the side wall of the bucket tooth and communicate with pin holes in the side wall of the bucket tooth. The U-shaped plug pin penetrates through the pin hole of the bucket tooth, the rotating block and the pin hole in the excavator bucket to fixedly connect the bucket tooth and the excavator bucket, the reset mechanism pushes the rotating block to extrude the side wall of the U-shaped plug pin, and the stability of connection of the U-shaped plug pin between the bucket tooth and the excavator bucket is improved.

Description

Technical field:

[0001] The utility model relates to the technical field of excavator parts, in particular to an excavator bucket tooth. Background technology:

[0002] In open-pit coal mines, drilling is carried out in advance to accurately control the scope of extra-surface resources in thin coal seams that have mining value, and the extra-surface resources in thin coal seams are mined and recovered to reduce the amount of stripping, improve economic benefits, and use specially made extended excavator bucket teeth to loosen the middle gangue layer in the thin coal seam.

[0003] Existing excavator bucket teeth are mainly composed of bucket teeth and buckets, which are fixed by U-shaped pins passing through pin holes on the bucket and bucket teeth. The bucket teeth will collide with stones during long-term excavation, causing the U-shaped pins connecting the bucket teeth and bucket to loosen, which can easily cause the bucket teeth to fall off after long-term use. Utility model content:

[0004] To this end, the purpose of the utility model is to provide an excavator bucket tooth to overcome the problem in the prior art that the existing excavator bucket teeth are mainly composed of bucket teeth and a bucket, which are fixed by U-shaped pins passing through pin holes on the bucket and the bucket teeth. The bucket teeth collide with stones during long-term excavation, causing the U-shaped pins connecting the bucket teeth and the bucket to become loose, which can easily cause the bucket teeth to fall off after long-term use.

[0005] The utility model is implemented by the following technical solutions:

[0006] An excavator bucket tooth comprises a bucket, wherein the bucket is detachably connected to a plurality of bucket teeth by means of a plurality of U-shaped pins passing through pin holes, a rotating block is slidably sleeved on the U-shaped pin, the rotating block covers the pin holes of the bucket side wall, the bucket and the rotating block are hingedly connected via a reset mechanism, the rotating block is rotatably arranged in a positioning mechanism, the positioning mechanism is provided on the inner side wall of the bucket tooth, and the reset mechanism can drive the rotating block to squeeze the side wall of the U-shaped pin.

[0007] Preferably, the cross-section of the rotating block is elliptical, and two positioning holes are symmetrically opened on the side wall of the rotating block, and the positioning holes are slidably sleeved on the U-shaped pin.

[0008] Preferably, the reset mechanism includes a plurality of dovetail blocks and dovetail grooves, the dovetail blocks are slidably arranged in the dovetail grooves, the dovetail grooves are opened on the side walls of the bucket, the side walls of the dovetail blocks are fixedly connected to the side walls of the rotating blocks, a compression spring is fixedly connected between the bucket and the dovetail block, and the compression spring is arranged in the dovetail groove.

[0009] Preferably, the positioning mechanism includes a slide groove and an arc groove, the slide groove is opened on the top surface of the bucket tooth, the arc groove is opened on the side wall of the bucket tooth, the slide groove is arranged directly above the arc groove and communicated with it, and the rotating block is rotatably arranged in the arc groove.

[0010] Preferably, the cross-section of the slide groove is trumpet-shaped.

[0011] Preferably, the bucket tooth side wall is symmetrically provided with two arc-shaped sliding grooves, and the arc-shaped sliding grooves are connected with the pin holes of the bucket tooth side wall.

[0012] The utility model has the advantages that a rotating block is hinged on the bucket through a reset mechanism, a U-shaped pin passes through the pin hole of the bucket tooth, the rotating block and the pin hole on the bucket to connect and fix the bucket tooth and the bucket, and the reset mechanism pushes the rotating block to squeeze the side wall of the U-shaped pin, thereby improving the stability of the U-shaped pin connection between the bucket tooth and the bucket. Description of the drawings:

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is the structural diagram of the utility model;

[0015] Figure 2 It is a schematic structural diagram of an embodiment of the positioning mechanism of the utility model.

[0016] In the figure: bucket 1, bucket teeth 2, rotating block 3, dovetail block 4, compression spring 5, dovetail groove 6, positioning hole 7, slide groove 8, arc groove 9, arc slide groove 10. Specific implementation method:

[0017] In order to make the purpose and advantages of the utility model more clearly understood, the utility model is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0019] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0020] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0021] like Figure 1-Figure 2 As shown, the utility model provides the following technical solutions: an excavator bucket tooth, comprising a bucket 1, the bucket 1 can be detachably connected with a plurality of bucket teeth 2 through a plurality of U-shaped pins passing through pin holes, a rotating block 3 is slidably sleeved on the U-shaped pin, the rotating block 3 covers the pin holes on the side walls of the bucket 1, the bucket 1 and the rotating block 3 are hinged by a reset mechanism, the rotating block 3 can be rotatably arranged in a positioning mechanism, the positioning mechanism is arranged on the inner wall of the bucket tooth 2, and the reset mechanism can drive the rotating block 3 to squeeze the side wall of the U-shaped pin.

[0022] The cross-section of the rotating block 3 is elliptical, and two positioning holes 7 are symmetrically opened on the side wall of the rotating block 3. The positioning holes 7 are slidably sleeved on the U-shaped latch.

[0023] Please combine Figure 1 As shown, during use, when the bucket tooth 2 needs to be installed, first twist the rotating block 3 to rotate 90°, then insert the U-shaped pin into the pin hole of the bucket tooth 2, and then slowly insert the bucket tooth 2 into the bucket 1, the bucket tooth 2 drives the positioning mechanism to move and gradually sleeve on the rotating block 3, and then continue to push the bucket tooth 2 to move. When the positioning mechanism is completely sleeved on the rotating block 3, the positioning mechanism cannot limit the rotating block 3 at this time. During the above operation, it is necessary to keep pressing the U-shaped pin. When the rotating block 3 drives the positioning hole 7 to gradually rotate to correspond to the U-shaped pin, the U-shaped pin moves and passes through the positioning hole 7 and the pin hole on the bucket 1 in turn, thereby realizing the U-shaped pin fixing the bucket 1 and the bucket tooth 2. At this time, the rotating block 3 is not fully reset. At this time, the reset mechanism has a tendency to push the rotating block 3 to rotate, and the rotating block 3 squeezes the side wall of the U-shaped pin to improve the stability of the U-shaped pin.

[0024] Please combine Figure 1 , Figure 2 As shown, an embodiment of the reset mechanism includes a plurality of dovetail blocks 4 and dovetail grooves 6. The dovetail blocks 4 are slidably arranged in the dovetail grooves 6. The dovetail grooves 6 are provided on the side walls of the bucket 1. The side walls of the dovetail blocks 4 are fixedly connected to the side walls of the rotating blocks 3. A compression spring 5 is fixedly connected between the bucket 1 and the dovetail blocks 4, and the compression spring 5 is arranged in the dovetail grooves 6.

[0025] Please combine Figure 1As shown, during use, when the rotating block 3 is manually rotated, the rotating block 3 drives the dovetail block 4 to slide in the dovetail groove 6 to squeeze the compression spring 5 to deform. When the rotating block 3 is fully entered into the positioning mechanism, the compressed compression spring 5 pushes the dovetail block 4 to slide, and the dovetail block 4 drives the rotating block 3 to reset.

[0026] Please combine Figure 1 , Figure 2 As shown, an embodiment of the positioning mechanism includes a slide groove 8 and an arc groove 9. The slide groove 8 is opened on the top surface of the bucket tooth 2, and the arc groove 9 is opened on the side wall of the bucket tooth 2. The slide groove 8 is arranged directly above the arc groove 9 and is connected thereto, and the rotating block 3 is rotatably arranged in the arc groove 9.

[0027] The cross-section of the slide groove 8 is trumpet-shaped, which facilitates the sliding in of the rotating block 3 .

[0028] Please combine Figure 1 As shown, during use, the bucket tooth 2 drives the slide groove 8 and the arc groove 9 to move, so that the slide groove 8 and the arc groove 9 gradually pass through the rotating block 3, and the slide groove 8 limits the rotating block 3. When the rotating block 3 completely enters the arc groove 9, the slide groove 8 cannot limit the rotating block 3. At this time, the rotating block 3 can rotate in the arc groove 9.

[0029] Two arc-shaped slide grooves 10 are symmetrically opened on the side wall of the bucket tooth 2, and the arc-shaped slide grooves 10 are connected to the pin holes on the side wall of the bucket tooth 2.

[0030] Please combine Figure 1 As shown, during use, when the bucket tooth 2 needs to be replaced, first gradually pull the U-shaped pin fixed between the bucket 1 and the bucket tooth 2. When the U-shaped pin is separated from the bucket 1, the bottom end of the U-shaped pin is inserted into the positioning hole 7. Then rotate the U-shaped pin. The U-shaped pin drives the rotating block 3 to rotate while pulling the bucket tooth 2. The bucket tooth 2 drives the slide groove 8 to slide on the rotating block 3. Then pull out the U-shaped pin and pull the bucket tooth 2 to slide off the bucket 1. Then replace the new bucket tooth 2 in the above manner.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An excavator bucket tooth, comprising a bucket, wherein the bucket can be detachably connected to a plurality of bucket teeth by passing a plurality of U-shaped pins through pin holes, and wherein: A rotating block is slidably sleeved on the U-shaped pin, and the rotating block covers the pin hole of the bucket side wall. The bucket and the rotating block are hinged via a reset mechanism. The rotating block can be rotatably arranged in a positioning mechanism, and the positioning mechanism is provided on the inner side wall of the bucket tooth. The reset mechanism can drive the rotating block to squeeze the side wall of the U-shaped pin.

2. The excavator bucket tooth according to claim 1, characterized in that: The cross-section of the rotating block is elliptical, and two positioning holes are symmetrically opened on the side wall of the rotating block. The positioning holes are slidably sleeved on the U-shaped latch.

3. The excavator bucket tooth according to claim 2, characterized in that: The reset mechanism includes a plurality of dovetail blocks and dovetail grooves, wherein the dovetail blocks are slidably arranged in the dovetail grooves, the dovetail grooves are arranged on the side walls of the bucket, the side walls of the dovetail blocks are fixedly connected to the side walls of the rotating blocks, a compression spring is fixedly connected between the bucket and the dovetail blocks, and the compression spring is arranged in the dovetail grooves.

4. The excavator bucket tooth according to claim 3, characterized in that: The positioning mechanism comprises a slide groove and an arc groove, wherein the slide groove is arranged on the top surface of the bucket tooth, the arc groove is arranged on the side wall of the bucket tooth, the slide groove is arranged directly above the arc groove and communicated with the arc groove, and the rotating block is rotatably arranged in the arc groove.

5. The excavator bucket tooth according to claim 4, characterized in that: The cross-section of the slide groove is trumpet-shaped.

6. An excavator bucket tooth according to any one of claims 1 to 5, characterized in that: The bucket tooth side wall is symmetrically provided with two arc-shaped sliding grooves, and the arc-shaped sliding grooves are connected with the pin holes of the bucket tooth side wall.

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